WO2003010017A1 - Conduit de climatisation de vehicule automobile - Google Patents

Conduit de climatisation de vehicule automobile Download PDF

Info

Publication number
WO2003010017A1
WO2003010017A1 PCT/JP2002/007449 JP0207449W WO03010017A1 WO 2003010017 A1 WO2003010017 A1 WO 2003010017A1 JP 0207449 W JP0207449 W JP 0207449W WO 03010017 A1 WO03010017 A1 WO 03010017A1
Authority
WO
WIPO (PCT)
Prior art keywords
conditioning duct
air conditioning
air
side wall
wall
Prior art date
Application number
PCT/JP2002/007449
Other languages
English (en)
Japanese (ja)
Inventor
Nobuya Nakagawa
Hajime Izumi
Tetsuo Tominaga
Toshihisa Kondo
Original Assignee
Mitsubishi Heavy Industries,Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries,Ltd. filed Critical Mitsubishi Heavy Industries,Ltd.
Priority to DE10292792T priority Critical patent/DE10292792B4/de
Priority to CA002421815A priority patent/CA2421815C/fr
Publication of WO2003010017A1 publication Critical patent/WO2003010017A1/fr
Priority to US10/379,905 priority patent/US6773340B2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00564—Details of ducts or cables of air ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/241—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
    • B60H1/246—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the interior of the vehicle or in or below the floor

Definitions

  • the present invention relates to an automotive air conditioning duct, and more particularly to an automotive air conditioning duct having a horizontally long cross-sectional profile.
  • Air-conditioning ducts for sending air-conditioning airflow from an air-conditioning device provided in an automobile console to the rear seat are often provided on the floor of the automobile.
  • the cross-sectional contours of these ducts have an elongated shape in the lateral direction due to limitations due to installation space (see Fig. 1). For this reason, if an occupant in the vehicle gets on the air conditioning duct and a vertical load is applied to the duct, the duct may be crushed or broken and damaged.
  • FIGS. 4 and 5 are a plan view and a side sectional view of a conventional air conditioning duct 40, respectively.
  • the top wall 4 2 and the bottom wall 4 4 of the air conditioning duct 40 are provided with dents 4 6 to prevent the air conditioning duct 40 from being damaged.
  • the structural strength of 0 is increased.
  • These dents 46 are protrusions 48, 50 when viewed from the inside of the air conditioning duct 40, and the protrusions 48 extending from the top wall 42 and the protrusions 50 extending from the bottom wall 44 are mutually connected. In contact. As a result, the structural strength of the air conditioning duct 40 is further increased.
  • the protrusions 48, 50 extending inside the air conditioning duct 40 as described above increase the flow resistance of air in the air conditioning duct 40. This will be explained in detail. As shown in FIG. 4, the flow area of the air-conditioning airflow flowing from the upstream in the direction of the arrow 52 is narrowed by the protrusions 48, 50. When the air-conditioning airflow passes the protrusions 48, 50, the flow path area increases. The flow resistance increases due to the reduction and increase of the flow path area. Strictly speaking, the air-conditioning airflow is divided into two parts by protrusions 4 8 and 50, and then the protrusions It goes around 4 8, 50 and tries to become one again.
  • the air-conditioned air flow is separated from the protrusions 48, 50, and a vortex is generated behind the protrusions 48, 50.
  • This vortex increases the flow resistance. Since there are multiple protrusions 4 8 and 5 0 in the flow direction 52, the air-conditioning airflow flowing in the air conditioning duct 40 will encounter the protrusions 4 8 and 5 0 many times, and the flow resistance will increase each time they meet. To do.
  • the present invention has been made to solve the above-described problems of the prior art, and provides an automotive air conditioning duct that suppresses an increase in the flow resistance of an air-conditioned airflow while improving the structural strength. It is aimed.
  • an air conditioning duct for automobiles is an automotive air conditioning duct having a horizontally long cross-sectional profile, and a top wall and a bottom wall constituting the air conditioning duct, and these top walls. And a protrusion extending from the top wall or the bottom wall into the air conditioning duct so as to connect the bottom wall, and the protrusion extends continuously in the flow direction of the air flowing in the air conditioning duct.
  • the cross-sectional area is characterized by being constant in the flow direction.
  • the air conditioning duct for automobiles having such a configuration has a horizontally long cross-sectional profile with a weak vertical structural strength, it extends from the top wall or the bottom wall into the air conditioning duct and connects the top wall and the bottom wall. Since the protrusion is provided, the structural strength can be increased. Since this protrusion extends continuously in the flow direction of the air flowing in the air conditioning duct and the cross-sectional area of the protrusion is constant in the flow direction, it is caused by repeated increase / decrease of the flow path area in the air conditioning duct. In addition, the flow resistance of air in the air conditioning duct can be suppressed.
  • the protrusion is continuous, so the protrusion is discontinuous It is possible to eliminate the flow resistance of air in the air conditioning duct, which was caused by the vortex generated in the air. As a result, the pressure loss of the air-conditioning airflow flowing in the air-conditioning duct can be reduced and the air volume can be increased.
  • the air conditioning duct has a bent portion, and the bent portion includes a protruding portion.
  • the bent portion of the air conditioning duct has a protruding portion that is continuous in the flow direction, so that the air-conditioning airflow flowing through the inner bent portion is a protruding portion that bends with a small radius of curvature. It is possible to suppress the large separation of the air-conditioning air flow that is guided by the air flow and is generated downstream of the inner curved portion. As a result, the pressure loss of the air-conditioning airflow flowing in the air-conditioning duct can be further reduced, the reduction of the air volume can be suppressed, and the air volume can be increased as compared with the conventional air-conditioning duct.
  • the bent portion has a large-radius side wall and a small-radius side wall and includes one protrusion, and the distance between the small-radius wall and the protrusion is The distance between the large radius side wall and the protrusion is the same as or narrower than that.
  • the bent portion has two or more protrusions having a large-radius side wall and a small-radius side wall and spaced apart in the width direction of the automobile air-conditioning duct.
  • the spacing between adjacent large radius side walls, each protrusion and the small radius side wall is the same or narrows from the large radius side wall to the small radius side wall.
  • the distance between the small radius side wall and the adjacent protrusion is narrower than the distance between the large radius side wall and the adjacent protrusion. For this reason, while improving the effect of preventing separation of the air-conditioning airflow that flows on the small radius side of the bend, the flow area of the air-conditioning airflow that flows on the large radius side of the bend can be increased, effectively reducing the pressure loss. Can be reduced.
  • FIG. 1 is a perspective view of an embodiment of an air conditioning duct according to the present invention attached to an automobile.
  • FIG. 2 is a plan view of the air conditioning duct according to the present invention.
  • Fig. 3 is a cross-sectional view of the air conditioning duct of Fig. 2 along line 3-3.
  • Figure 4 is a plan view of a prior art air conditioning duct.
  • Fig. 5 is a cross-sectional view of the air conditioning duct of Fig. 4 along line 5-5.
  • FIG. 1 is a perspective view of an automotive air conditioning duct 1 according to an embodiment of the present invention.
  • each air-conditioning duct 1 extends along the floor of the vehicle V from the air-conditioning device 2 provided at the center in the width direction of the vehicle V.
  • Each air-conditioning duct 1 includes a first bent portion 4 bent outward of the vehicle, a second bent portion 6 connected to the first bent portion 4 and bent rearward of the vehicle, and the second bent portion.
  • a blowout port 10 formed in the downstream end 8 disposed downstream of the part 6. Since the two air conditioning ducts 1 are symmetrical, only the air conditioning duct 1 on the left side of the vehicle will be described below.
  • the second bent portion 6 of the air conditioning duct 1 has a large radius side wall 1 2, a small radius side wall 1 4, a top wall 1 6, and a bottom wall 1 8. It has a horizontally long rectangular cross-sectional profile.
  • the air-conditioning duct 1 has two rows of dents 20 a and 2 Ob extending along the longitudinal direction thereof, and these dents 20 a and 2 ob are outer protrusions 2 2 extending into the air-conditioning duct 1. And the inner projecting portion 24.
  • the outer protrusion 2 2 is constituted by a protrusion 2 2 a extending from the top wall 16 and a protrusion 2 2 b extending from the bottom wall 18, and the inner protrusion 24 is a protrusion extending from the top wall 16 It is constituted by a part 2 4 a and a projecting part 2 4 b extending from the bottom wall 18. Projection 2 2 a and projection 2 2 b and projection 2 4 a and projection The protruding portions 2 4 b may be connected so as to be fixed to each other in the air conditioning duct 1 or may be connected so as to be in contact with each other.
  • the air-conditioning duct 1 improves the structural strength in the vertical direction of the air-conditioning duct 1 by connecting these protrusions 2 2 and 24 to each other.
  • the outer projecting portion 2 2 and the inner projecting portion 24 extend continuously in the air flow direction 26 in the air conditioning duct 1, and the outer projecting portion 2 2 and the inner projecting portion.
  • the cross-sectional area of 24 is constant in the flow direction. Since each protrusion 2 2, 24 extends continuously, the structural strength of the air conditioning duct 1 is further increased.
  • the distance L 3 between the small radius side wall 14 and the small radius side wall 14 is arbitrarily designed to be the same or narrower from the large radius side wall 12 toward the small radius side wall 14.
  • the air-conditioned airflow flows in the direction of the arrow 26, and flows along the outer protrusion 2 2 and the inner protrusion 24 in the air conditioning duct 1.
  • the protrusions 2 2 and 2 4 extending from the top wall 1 6 and the bottom wall 1 8 of the air conditioning duct 1 are connected to each other and continuous in the flow direction, and the cross-sectional area of the protrusions 2 2 and 2 4 is constant in the flow direction. Therefore, unlike the case where the protrusions 2 2 and 2 4 are discontinuous, no vortex is generated. For this reason, it is possible to suppress an increase in the resistance of the air-conditioning airflow caused by the vortex generation. As a result, the pressure loss of the air-conditioning airflow flowing in the air-conditioning duct 1 can be reduced and the air volume can be increased.
  • the air-conditioned airflow flows through the bent portion 6 of the air-conditioning duct 1, the air-conditioned airflow is easily separated on the downstream side of the small radius side wall 14.
  • the air conditioning duct 1 has the inner protruding portion 24, the air-conditioning airflow flowing between the inner protruding portion 24 and the small radius side wall 14 protrudes inward so as to flow along the wall surface. Guided by part 2 4. For this reason, separation of the air-conditioning airflow that has occurred on the downstream side of the small radius side wall 14 of the bent portion 6 is suppressed. Can.
  • the pressure loss of the air-conditioning airflow flowing in the air conditioning duct 1 can be further reduced, and the air volume can be increased as compared with the conventional air conditioning duct.
  • the distance L 3 between the inner projecting portion 24 and the small radius side wall 14 is preferably narrow to some extent in order to enhance the effect of guiding the air-conditioned airflow.
  • the radius of curvature of the path of the air-conditioning airflow flowing between the large-radius side wall 12 and the outer protrusion 2 2 and the air-conditioning airflow flowing between the outer protrusion 2 2 and the inner protrusion 2 4 is relatively large. Therefore, the distance L 1 between the large radius side wall 1 2 and the outer protrusion 2 2 and the distance L 2 between the outer protrusion 2 2 and the inner protrusion 2 4 are the same as the inner protrusion 2 4 and the small radius.
  • the distance between the side wall 14 and the side wall 14 is preferably larger than the distance L 3.
  • the intervals L 1 and L 2 are preferably larger than L 3.
  • the flow path area is increased, and an increase in flow resistance can be efficiently suppressed. Therefore, the outer protrusions 2 2 and the inner protrusions 2 4 of the air conditioning duct 1 in the present embodiment have not only a function of increasing the structural strength of the air conditioning duct 1 but also a function of rectifying by guiding the air conditioning airflow. Have both.
  • the air conditioning duct 1 may be a straight line. Further, the entire flow passage area of the air conditioning duct 1 may gradually change in the flow direction.
  • the protrusions 2 2 and 2 4 extend into the air conditioning duct 1 from both the top wall 16 and the bottom wall 18, but either of the top wall 16 or the bottom wall 18 It may extend from only one to the other.
  • the air conditioning duct 1 has a rectangular cross-sectional outline, but may have a curved portion in a corner portion, or may have a horizontally long elliptical shape.
  • the two protrusions 2 2 and 24 are provided, but the number of protrusions may be one, or may be three or more.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)

Abstract

Cette invention porte sur un conduit (1) de climatisation de véhicule automobile, lequel conduit présente une coupe transversale latéralement allongée. Ce conduit (1) de climatisation de véhicule automobile comprend une paroi supérieure (16) et une paroi inférieure (18) constituant ce conduit (1) de climatisation, ainsi que des éléments en saillie (22, 24) s'étendant de la paroi supérieure (16) ou de la paroi inférieure (18) dans le conduit (1) de climatisation et servant à coupler la paroi supérieure (16) et la paroi inférieure (18). Les éléments en saillie (22, 24) s'étendent en continu dans le sens d'écoulement de l'air dans le conduit (1) de climatisation et présentent une zone transversale régulière dans le sens d'écoulement.
PCT/JP2002/007449 2001-07-23 2002-07-23 Conduit de climatisation de vehicule automobile WO2003010017A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10292792T DE10292792B4 (de) 2001-07-23 2002-07-23 Klimatisierungskanal für ein Fahrzeug
CA002421815A CA2421815C (fr) 2001-07-23 2002-07-23 Conduit de climatisation de vehicule
US10/379,905 US6773340B2 (en) 2001-07-23 2003-03-06 Air-conditioning duct for vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001-221232 2001-07-23
JP2001221232A JP2003034115A (ja) 2001-07-23 2001-07-23 自動車用空調ダクト

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/379,905 Continuation US6773340B2 (en) 2001-07-23 2003-03-06 Air-conditioning duct for vehicle

Publications (1)

Publication Number Publication Date
WO2003010017A1 true WO2003010017A1 (fr) 2003-02-06

Family

ID=19054929

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/007449 WO2003010017A1 (fr) 2001-07-23 2002-07-23 Conduit de climatisation de vehicule automobile

Country Status (6)

Country Link
US (1) US6773340B2 (fr)
JP (1) JP2003034115A (fr)
CN (1) CN100450805C (fr)
CA (1) CA2421815C (fr)
DE (1) DE10292792B4 (fr)
WO (1) WO2003010017A1 (fr)

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FR2871101A1 (fr) * 2004-06-02 2005-12-09 Renault Sas Dispositif d'habillage pour un habitacle de vehicule automobile
US7416138B2 (en) * 2005-03-03 2008-08-26 Valeo Climate Control Corp. Thermal bypass channel
US20070128997A1 (en) * 2005-12-01 2007-06-07 Nissan Technical Center North America, Inc. Vehicle air duct structure
US8475245B2 (en) * 2006-02-03 2013-07-02 Toyota Motor Engineering & Manufacturing North America, Inc. Vehicle air duct including strength rib
JP5012249B2 (ja) * 2006-08-07 2012-08-29 株式会社デンソー 車両空調用吹出ダクトおよび車両用空調装置
JP4952361B2 (ja) * 2007-04-26 2012-06-13 トヨタ紡織株式会社 ダクト付きフロアサイレンサー
DE102007025572A1 (de) * 2007-05-31 2008-12-11 Behr Gmbh & Co. Kg Fluidkanal
JP5074852B2 (ja) * 2007-07-31 2012-11-14 キョーラク株式会社 空調ダクト
US8480461B2 (en) * 2007-10-16 2013-07-09 Automotive Components Holdings, Llc Vehicle register air flow straightener
US8608532B2 (en) * 2008-04-23 2013-12-17 Ford Global Technologies, Llc Climate control duct architecture for a vehicle
US20100216387A1 (en) * 2009-02-20 2010-08-26 Ford Global Technologies, Llc Duct architecture for regulating climate zone in a vehicle
US8632382B2 (en) * 2009-07-23 2014-01-21 Toyota Motor Engineering & Manufacturing North America, Inc. Vehicle air system assemblies with aircap assemblies
JP5621370B2 (ja) * 2010-07-13 2014-11-12 日産自動車株式会社 車両用フロア構造
US8535002B2 (en) 2010-08-09 2013-09-17 Automotive Components Holdings Llc HVAC diffuser with mounting receptacle for variable blower control
WO2012023904A1 (fr) * 2010-08-20 2012-02-23 National University Of Singapore Matériaux à base de phosphate métallique à mésopores pour application en stockage d'énergie
JP5477322B2 (ja) * 2011-04-01 2014-04-23 マツダ株式会社 車両の電装部品配設構造
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CN107160973A (zh) * 2017-06-20 2017-09-15 北京汽车研究总院有限公司 一种汽车空调风道和汽车
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Also Published As

Publication number Publication date
US6773340B2 (en) 2004-08-10
CA2421815C (fr) 2005-08-23
CN1464852A (zh) 2003-12-31
CN100450805C (zh) 2009-01-14
JP2003034115A (ja) 2003-02-04
DE10292792T5 (de) 2004-04-22
CA2421815A1 (fr) 2003-03-07
DE10292792B4 (de) 2005-11-24
US20030176159A1 (en) 2003-09-18

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